There is a great article published in Adweek, "These Brands Build Community - How these Web 2.0 companies build good relationships to build their brands," that clearly and succinctly sums up what innovative (and successful) companies are doing, like Zappos, Threadless, Etsy, Craigslist and Yelp.
The key, the article clearly points to, is that these companies are "quietly building brands online on the strength of communities." While I would say there is nothing "quiet" about @Zappos interactive dialogue and "Tweet Evangelism" on Twitter or the "voice" of user-generated slogans and design and community ratings submitted for the latest and greatest Threadless T's slogans or the "raving fan base" of Etsy's marketplace, the article has a quote that is so worth stating over and over again...
"Community is not a tactic or marketing plan line item, but core to what [successful Web 2.0 brands] do. It means being hyper-responsive to customers, laser focused on usability, unapologetically human and OK with customers determining the course their businesses should take. The bonus: When they take off, these brands don't need to do much in the way of advertising, instead letting their customers spread the word."
This cannot be expressed enough in every aspect of your interactive/marketing plan. Community is so core to successful engagement today that it has got to be where your message becomes dialogue, your consumers become relationships and those relationships become inter-personal.
